Rotating-ring crushing-machine.



E. B. SYMONS.

ROTATING RING C'RUSHING MACHINE.

APPLICATION FILED NOV- 9,1914.

'Patentd Apr. 30,1918.

3 SHEETS-SHEET ABPLICATION FILED NOV-9.19M.

Patented. Apr

3 SHEETS-SHEET E. B. SYIVIONS.

ROTATING RING CRUSHING MACHINE.

APPLICATION FILED NOV. 9, I914.

Patented Apr. 30, 1918.

3 SHEETS-SHEET 3.

' mo air.

Janeen EJSYMONS, or onrcaeo, rumors.

EQ'IVAJE'IIENWRING onnsnnve naonrnn.

To allwitom it may'comem:

Be it known that l, JEDGAJR IBlfixnroivs-a citizen of the United States,residing at. Gin

cag'oyin the I-coulnty of-Co'okand State of 'fllll'mois, have inventeda. certain new" and- "useful Improvement in 'Fotating-Ringrushing-Machines, of which the following -r is a specification.

My ventlon 'relates'primarily crush-' ingor fine reduction machineswherein the materialis to be pulverized or very finely reduced. In orderto produce this result,

- 1 and in order to do it rapidly, it is necessary 'jjthatthe material'be spread or arrangedon'j 'the crushing surfaces in the form of a thinflayer or film prior to and during the process:

v of crushing, and this necessitates in the peculiar form of roller ringand crushing ma- E' jchine which llh'ave shown, a ring in whichthedischarge side or sides are completely open and free to discharge thematerial at; all times absolutely without. hindrance. -'llhat is to say,the presence of a screen or a selective member of 'any' kind whateverwould interfere with the operation of my de: vice by causing a bankingup of the crushed material at the screen, and thus the film so necessarywould no longer be had.

In my device, therefore, I have provided an arrangement wherein thediameter of the. .exit opening, that is to say," the diameter at theextreme ends of the crushing ring is ef- 5 fectively equalto thediameter of the ring at that point.

'][f this thin cause the crushing element itself cannot be relied uponsatisfactorily to feed the material and this feed is necessary toprevent bankm gap and preserve the of uniform and predeterminedthickness.

My invention therefore relates toimprove-L ments in rotatingringcrushing machines.

It is illustrated more or less, diagrammati-- cally in one form in theaccompanying drawin s, wherem 1 lgure 1 is an end elevation in parts'ection with parts broken away;

Fig. 2 a section on the'line2--2 of Flg. 1;

' specification of Letters lPa'tent.

film is'to bemaintained, it is Y to provide some kind of conveymg mecanism to. convey the material alon "the crushing surface as it is beingcrushe or between successive crushing blows, be:

Patented a a, rare.

application filed November 9, 1914. Serial in. mm

Fig.3 a fragmentarydetailed' planview A is a base block or framemadepreferably of concrete, though it might be made of any: othersuitable material, containing a another form hopper chamber A adischarge passage A for the crushed material and a-manhole A in thewallthereof. Resting on opposite sides of the block A'are saddles 2B, 13containing the bearing sleeves B B in which bearing sleeves are locatedbearings B to support'the single. horizontal shaft B which has at oneend the driving pulley B driven; by any suitable source of power nothere shown.

e C, 0 m two cylindrical supporting con: nections inwardly tapered toreceive the wedge blocks C 0% which are drawn toward one another towedge between the roll sections G C and the shaft B by means of thebolted and nuts 0 Keyway Cfis providedfor the engagement ofa key nothere shown, to prevent rotation of the wedge blocks and roll sectionsupon the shaft. D is atwo-part crushing ring, the-two parts of.

which are held together by means of the tie bolts D and nuts I)on'diametricallyopposed sides thereof. This is provided about itsperiphery with-flange"D ,which is in engagement with the grooved rolls10*, JD

mounted in bearings D 1D v on the support A.- The roll D is free torotate but is held against longitudinalmove'ment, whereas the roll 10 isfree to rotate and also to move longitudinally with its aXis through aslight excursion between fixed limits. D l)", D- are annular crushingring lining members within the crushing ring and attached therein in anysuitable manner. They may be eithermade. up as single annular mements asthe case may be.

here or of se- They are, as are shown, held in position againstlongitudinal movement along the sizes down to relatively small sizes.Thishollowing out of the inner surface of the ring at one side by anannular collar E, at the other side by an annular collar E, which collarforms a base for the outwardly and then inwardly disposed feed ring Ewhich ring incloses a feed pocket ll at one side of which are pivotedthe guide plates E"; E

is an adjustable cross bar supported on the armsE E and held adjustablein position thereon by means of the bolts E. This crossbar is providedwith curved slots E so that it may be moved-longitudinally to adjust theinclination of the guide plates E which are each secured to the crossbarE by the nuts E engaging slots E in the crossbar itself so that eachindividual guide plate may be adjusted with respect to the remainder orwith respect to the movable crossbar itself.

F, F are pulleys carrying chains F F supporting the free ends of thearms E, E". 'lhese pulleys are mounted on shafts F F controlled bychains F, F over pulleys F, F adapted to be operated and controlled byany suitable means as for example the rod F and nut F to raise and lowerthespreader and thus control the thickness of film left between thebottom of the guide plates and the crushing ring. Either chain 13 or Fmay be dispensed with.- r

In the modification shown in Fig. 5, the ring is centrally hollowed at Gto adapt the machine for crushing from relatively large ring may takeany form or shape. I have suggested the structureshown in Fig. 5.

With such an apparatus it is necessary, and with any form of ring itmight be desirable to spread the material from the center outwardly ineither or both'directions. This is accomplished by a structure such asthat shown wherein the spreading plate E", E are arranged on one side atone angle and on the, other. side at the opposite ang'le. To do thiseffectively, I provide separated bars G, G, each secured referably bymeans 0%. a slot and pin G to the side bars E and gether by a link G bymeans of the slots G Gr and set screws G, G whereby the two bars .G andG are adjustable to and from each other. as to be downwardly inclinedtoward the middle line of the ring. Each of the spreader plates ispreferably secured to its proper cross bar Gr by means of the arc-.shaped slot and set screw G so that the individual spreaders may beseparately adjusted. G" is 'a short link which connects the two bars GGr to which the other ends hollowed out.

It goes u The two bars G, G are secured'to- They are mounted so.

of the Spreaders E are pivoted. By this means the spreaders may beadjusted in any desired manner to accommodate themselves to the servicerequired in connection with a ring where the material is fed near themiddle and to a ring whose surface is inwardly Gr is an inward extensionof the feed-spout which delivers near the middle line of the ring and atone side of the spreader device.

- It will be evident that while I have shown in my drawings an operativedevice, still many changes might be made in size, shape and arrangementof parts without departing from the spirit of my invention. I wish,therefore, that my drawings be taken as in a sense diagrammatic, and Ido not wish to be limited to the particular devices shown or to theparticular elements of the machine accompanying the essential featuresof my invention.

The use and operation of my invention are as follows:

The crushing machine is started by rotating the shaft in the usualmanner. This causes the ring to rotate, since the ring is supported onthe roll. The material to be crushed is then fed in through the feedspout and discharged into the annular feed pocket at one side of thering. When this pocket is filled, (-11 reached by the first guide plate,which, acte material piles up and is their ing as a plow or guide, feedsthe material over into the crushing zone. The material, of course, as itfalls into the feed pocket and is fed into the crushing zone is held bycentrifugal force against the inner surface of .the ring, is carriedaround and when in the "feeding' zone, is acted upon'by the crushingroll, being crushed thereby, the weight of the ring crushing thematerial against the roll as an anvil. The material after being crushedcomes around and strikes the next guide plate and is by it movedslightly over.

continues until the material has passed completely through the ring,making as many complete revolutions to make this passage as there areguide plates. The material is pushed off the ring at the bottom on theside opposite the side at which it enters, and is discharged bycentrifugal force downwardly into the receiving hopper.

It will be understood hat as the coarse 'material is fed in, at one sideof the ring,

- ward the discharge end.

It will be noted that I have made proviand is again crushed andcomesdown an strikes the next guide plate. This lat sion for both meansof adjustment. I have always at' substantially the same position shownthe inside diameter of the ring but since they rotate about difi'erentaxes slightly larger at the feed end than it is at and since theirperipheries are substantially the discharge end so that as the materialtan ential, it is obvious that they do efi'ecby being reduced packs downand occupies tive y at least have a movement and do in less space, itwill still always be crushed by eflect have or form a crushing strokesince the ring. If this adjustment is notsuflicient, any point of thesurfaces will gradually or and under some circumstances it might besuccessively approach it and recede from insulficient, it is onlynecessary to adjust the other surface. n

10 the guide plates so that each succes: It will be understood that thearrangesive plate is more nearly parallel with a ment which I proposeprovides means for plane perpendicular to the axis of rotation reducingthe material by a series of sucso that each vein feeds the materialforward cessive separate crushing hammer-like blows, a shorter distance.The result of this will, that is to say, while the crushing ring and 15ofcourse, betohave the material bank up crushing roll are always incontact, still any to a certam extent so that more material will onepoint on the crushin ring is treated by he in the ring toward thedischarge end a series of successive b ows, one blow octhan is in itadjacent the feed e'nd,,and-this curring each revolution ofthat pointwhen will compensate for'thfi'ndflcreased bulk of it asses the roll.

20 the finely. cmshedmaterialgas -contrasted claim: I

with tlie'coarser material? I t 1. A crushing machine comprising a ring,When my device is in operation with the a roll within and supportin it,means for rotary speed of the ring sufiicient to cause a rotatingtheroll, means for ceding the mablanket of material to adhere firmly toit, tcrial to the surface of the ring, means for 25 it is obvious thatso long as the rin rotates feeding the-material to the surface of the atthe necessary speed, tlie force 0 gravity ring near its middle line anda spreading or any other "force can exertsnolinfluence to devlce to movethe material outwardly from change the position of the material on theits middle line toward both sides of the ,ring, because tliefonly otherforce p resent---- 2. -A crushing machine comprising a ring,

30 and unaccounted for is the-crushing force .a roll within andsupporting it, means for exerted between the crushing surfaces on,rotating the roll, means for. feeding the mathe ring and on the rollwhichj'tends tdmake terial'to the surface of the ring, means for the twocrushing surfaces takehatthe crushs:-.- feeding the material to thesurface ofthe ing point first approach to and then recede' ring near itsmiddle line and a spread de s 35 from each other and sincethe angleof avice to move the material outwardly rom proachisvery great, the materialis smooth y its middle line toward both sides of the rin and easilyrolled downiand-compact'e'dinto said ring hollowed'i'from near its mid ea a flat firm mas s by'jthe pressure between the line outwardly. r

two surfaces."' This actibii' b'othcompacts 3. A crushing machinecomprising a ring,

40 the whole blanket of-material on. the ring a roll within andsupporting it' and means and also compacts individual particles into forrotating the roll, and means for feeding hard brick-like slabs orcakesma'de up of the... material to be crushed transversely crushed.;or.;..pqwdered material compactacross the crushing face of the ring bya ed together by the pressure, and1it is neces-.: series of separatesteps, said steps being 45 sary if the crushing is to proceed that thisshorter ad acent the discharge side of the blanket be brokenmup and thatthese hard ring.

cakes be, crackedotf'dis'tfifbed to 'a ain ex 4. A- crushing machinecomprising a ring,. pose them to the crushing pressure etween a rollwithin and supporting it and means each sucge 'slsijecrushing stroke toprevent for rotating the roll, and means for feeding 50 theblanketmaterial-- and particularly. such ---the material to be crushedtransversely hard cakes acting as a cushioii'toprotect the across thecrushing face of the ring by a uncrushed particles from'being crushed.It series of separate steps, said steps being prois also necessarytoinove this material progressively diminished from the feed to thegressively or gradually along to-feed it discharge point.

55 through the machine, and the feeding vanes 5... A. crushing. machinecomprising a pair which I have shown thus have a two-fold of opposedcrushing surfaces, means for function, first, to act as a stirringmragi; moving themtoward and from one another, tating 'harrow likei-teethto.scrapeinp and" means for feeding material to them andagitate"thecrushed 'blanliet,' and second, to means for," conveying itgradually-across 60 act as conveyer blades to move the crushedthemby-a-series-of separate movements of material through the macliineprogressively diminishing length lwtween l have talked abofitmovementsof the "themovements of the'erushing members.

crushing; surfaces or successive movements 6. A crushingmachine-comprising a pair of theicrushing aces.- It will be obviousvof'opposeol crushing surfaces, means for 65. that the crushing surfacesin toto remain moving them toward andfrom one another,

means for. feeding inaterial to them and means removed from theefiective crushing zone between the surfaces 'for conveying the materialgradually across them by a series of separate movements of progressivelydiminishing length between the movements of the crushing members.-

7. In a crushing machine a pair of opposed crushing surfaces, means formoving them to and from one another to give a crushlng stroke, means forfeeding material Lessee? to said surfaces and means for propelling itwith gradually decreasing velocity c0n-, trollably along said crushinsurfaces.

In testimony whereof, I a x my signature 15 in the presence of twowitnesses this 30th day of October, 1914.

EDGAR B. SYMONS.

Witnesses:

MINNIE M. LINDENAU, Bnssm S. RICE.

